Cincinnati & Hamilton County
Plumbing Help for Cincinnati Basements, Drains and Old Sewer Lines
If sewage or water is coming up a floor drain right now: stop running water and flushing, keep away from standing water near outlets or appliances, take photos, and report it to MSD within 48 hours. Then call, and a local plumbing company takes it from there.
A lot of Cincinnati plumbing trouble starts below the basement floor. The city sits on hills above an old combined sewer system, a large share of its houses were built before 1940, and a heavy summer storm can push the public sewer back up through a floor drain in an hour. The rest of the year it is roots in clay pipe, and in January it is pipes freezing along outside walls.
Answered Mon–Sat, 8am–6pm · after hours, the company's on-call rota applies
No charge for the referral · One local plumbing company, not a list
What Cincinnati plumbing work generally costs
Clearing one blocked fixture is usually quoted at roughly $150 to $350. Clearing the main line from a basement cleanout runs about $250 to $600, more with a camera inspection. Digging up a broken clay lateral is a different scale: several thousand dollars, and well past $10,000 when the break is deep or under the street.
The calls that come in most
Water or sewage on the basement floor, usually during or right after heavy rain. A kitchen or laundry drain that has gone slow and then stopped. A main line that backs up every year or two because roots have found the joints in an old clay lateral. A sump pump that ran all spring and finally quit. Pipes that froze on the first single-digit night of January. Those five account for most of what people in Cincinnati need a plumber for, and every one of them has a local twist.
Describe the problem on the phone or in the form and it goes to one local plumbing company that covers your ZIP code. They decide whether it can be talked through or needs a visit, and they quote the work.
Why a storm can put sewage in your basement
Much of the older city is served by combined sewers, which carry rainwater and household wastewater in the same pipe. On a normal day that is fine. When several inches of rain fall in a few hours, the public pipe fills, and the lowest opening it can push back through is often a basement floor drain. In July 2026 parts of the city got as much as five inches in a few hours, and MSD logged more than 1,500 possible backups in a week.
Not every wet basement is the sewer's fault. A blocked or broken private building sewer, a failed sump pump or water coming in through the walls look similar from the stairs and have different fixes and different people paying for them. Telling them apart is the first useful thing a plumber does on a backup call.
Water in the basement now? Report it to MSD within 48 hours, then call and a local plumbing company can find out whether the cause is the public sewer or your own line.
Old houses, old pipe
Cincinnati's housing is old by national standards: more than half of owner-occupied homes in the city were built before 1940. In Clifton, Northside, Price Hill and much of Westwood that usually means a clay or cast-iron drain running from the basement to the street, galvanized steel supply pipe that has been patched over the decades, and in a lot of cases a lead water service line that Greater Cincinnati Water Works is still working to replace. None of that is a reason to repipe a house in one go. It is a reason to have the drain line cameraed before you finish a basement, and to ask what the supply pipe is made of before buying a house.
Winter is the other busy season
January nights in Cincinnati average about 23°F, and a cold snap takes them well below that. Pipes in outside walls, in crawlspaces, over unheated garages and at hose spigots are the ones that freeze. Search demand for plumbers here peaks in February, when thaw finds the splits that the freeze made. Knowing where your main shutoff is before that happens is worth more than anything else on this page.
What people call about
- Plumber in Cincinnati, OH
- Basement Sewer Backup Plumbing in Cincinnati
- Drain Cleaning in Cincinnati
- Sewer Line Repair in Cincinnati
- Emergency Plumber in Cincinnati
- Sump Pump Repair and Replacement in Cincinnati
Where we work in Cincinnati
- CliftonUptown, near UCbig late-1800s and early-1900s houses on the hill around the Gaslight district; original clay and cast-iron drain lines are still common, and so are mature street trees whose roots find the joints
- NorthsideNorth-centralolder frame houses on steep side streets off Hamilton Avenue, many with stone or block basements and a single floor drain doing all the work when a storm hits
- WestwoodWest sidethe city's largest neighbourhood by area and population, with housing from the 1900s to the 1950s; a long run of clay lateral out to the street is typical
- Hyde ParkEast sideearly-1900s houses with finished basements, which is exactly why a backup costs more here; in the July 2026 storms Observatory Avenue had a foot or two of water in the street
- Mount WashingtonFar east sidea neighbourhood where frequent backups led MSD to build separate stormwater pipes rather than install dozens of individual prevention devices
- Price HillWest side, above the riverEast, West and Lower Price Hill sit on steep ground with a lot of pre-1920 brick housing; long drops to the sewer and old galvanized supply lines both turn up
ZIP codes served45202 · 45204 · 45205 · 45206 · 45208 · 45209 · 45211 · 45219 · 45220 · 45223 · 45224 · 45230 · 45238
Beyond Cincinnati
We also cover Norwood, Cheviot & Green Township, Delhi Township and Anderson Township.
Guides
- What a Plumber Costs in Cincinnati (2026)
- MSD's Sewer Backup Program: The First 48 Hours
- Clay Sewer Laterals Under Clifton, Northside and Westwood
- Frozen Pipes in a Cincinnati Cold Snap
- Sump Pump or Backwater Valve? Two Different Basement Problems
- Lead Water Lines in Cincinnati: How to Check Yours
- Plumbing Permits in Cincinnati and the Rest of Hamilton County
Common questions
Is there a charge for calling?
No. Calling or sending the form costs nothing and commits you to nothing. If you hire the plumbing company, you pay them directly at the price you agree with them.
Sewage came up my floor drain after a storm. Who pays?
It depends on the cause. If MSD finds the public sewer ran out of capacity, its Sewer Backup program may pay for professional cleaning and reimburse documented damage, but only if you report within 48 hours of finding it. If the blockage is in your own building sewer, the cleanup and repair are yours. The city says about 85% of reported backups turn out not to be caused by the public sewer.
Should I call MSD or a plumber first?
Report to MSD first if wastewater came up during or after rain, because the 48-hour clock is the one you cannot get back. A plumber is the right call for finding the cause, especially if the backup happened on a dry day, which usually points to a clog or break in your own line.
Do you cover my part of town?
Cincinnati neighbourhoods on both sides of Mill Creek, plus Norwood, Cheviot, Green Township, Delhi Township and Anderson Township. Northern Kentucky is a different state with different licensing, so it is not covered here. If you are near an edge, give your ZIP code on the call.
Can a plumber stop my basement from backing up again?
Sometimes. A backwater valve or an overhead sewer conversion can stop public sewer water reaching the basement, but each has trade-offs and needs a permit. If your property has had two or more MSD-caused backups in five years, ask MSD about its Prevention Program before paying for anything yourself.
How fast can someone come out?
That is set by the plumbing company and how busy they are, and it will be honest with you on the call. Storm nights are the hardest: after the July 2026 storms MSD had more than 1,500 backup reports to work through, and plumbers were stretched too.
Are you the plumbing company?
No. Cincy Plumbing Pros is an advertising and referral service. Your call or request goes to one independent local plumbing company that serves your area, and they quote and do the work. We hold no plumbing licence and do not do plumbing ourselves.
Tell a local plumber what is going on
Say what is happening and where, and a local plumbing company will call you back. Answered Mon–Sat, 8am–6pm · after hours, the company's on-call rota applies Or call (513) 986-8088. If water is coming in right now, calling is quicker.